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Grade 10.9 wheel bolt is a kind of high-strength bolt. They are made of carbon steel. The material is heat treated by quenching and tempering. Our steel is a leading supplier and manufacturer of grade 10.9 bolt products of various sizes and types. Bolts a
Our jeans buttons and rivets is made of copper alloy material. Copper has better rolling process ability, while pure copper is softer, and the utensils made are easy to bend and deform, so it is often fused with other metals to form copper alloys. Copper